Vorlage 3a

Technical requirements for the handover interfaces for the execution of telecommunications surveillance

The supported ASN.1 Object identifiers and versions are stated in section 6.6

6.5.7 ETSI TS 102 232-6 V3.3.1 Service-specific details for PSTN/ISDN services

Clause Selection of ETSI options for Swiss Additional requirements or specifications ETSI TS applications

102 232-6

5.2 Structures

IRI is encoded with module

HI2Operations according to ETSI TS

101 671 V3.12.1 Annex D.5 and

transferred directly by ETSI TS 102

232-1 V3.11.1 Annex A.2 via the

parameter ETSI671IRI.

6.2 CC format

If the interception is performed in the

ISDN or ISUP domain (Circuit

switched):

The copy of content of the

communication (CC) is delivered as

audioFrame via the parameter

PstnIsdnCC.

If the interception is performed in the

IP domain (Packet switched):

The copy of the content of This requirement also applies if the communication (CC) is delivered as provider supports peer-to-peer RTP packets with UDP and IP communication by providing the key headers by ETSI TS 102 232-1 while the encryption itself is performed V3.11.1 via the parameter outside the provider’s network.

PstnIsdnCC.

The information required for

interpreting the audioFrame or RTP

packets are also transferred by ETSI

TS 102 232-1 V3.11.1 via the

parameter PstnIsdnIRI.

At the point of handover the CSP

must remove any service coding

and/or encryption that have been

applied to the data on his part.

6.3.2 Supplementary information

G.711 (11/88) A-law is the default,

and preferred codec (mediaAttributes

= "8").

Table 6-17: ETSI TS 102 232-6 V3.3.1 Service-specific details for PSTN/ISDN services

The supported ASN.1 Object identifiers and versions are stated in section 6.6